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题名: Sedimentary nutrients in the mainstream and its five tributary bays of a large subtropical reservoir (Three Gorges Reservoir, China)
作者: Zhang, Min1, 2; Xu, Yaoyang1; Shao, Meiling1; Cai, Qinghua1
通讯作者: Cai, QH (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 Donghu S Rd, Wuhan 430072, Hubei, Peoples R China.
关键词: PHOSPHORUS RELEASE ; XIANGXI BAY ; LAKE ; NITROGEN ; RIVER ; SEA ; DISTRIBUTIONS ; SHALLOW
刊名: QUATERNARY INTERNATIONAL
发表日期: 2012-12-19
DOI: 10.1016/j.quaint.2012.02.054
卷: 282, 页:171-177
收录类别: SCI
文章类型: Article
部门归属: [Zhang, Min ; Xu, Yaoyang ; Shao, Meiling ; Cai, Qinghua] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China ; [Zhang, Min] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
WOS标题词: Science & Technology ; Physical Sciences
资助者: Key Project of Knowledge Innovation Program of CAS [KZCX2-YW-427]; National Natural Science Foundation of China [40671197]; State Key Laboratory FEBL [2008FBZ02]; Major Science and Technology Program for Water Pollution Control and Treatment [2009ZX07528-003]
类目[WOS]: Geography, Physical ; Geosciences, Multidisciplinary
研究领域[WOS]: Physical Geography ; Geology
摘要: In order to analyze the distribution pattern of the sediment nitrogen and phosphorus of the Three Gorges Reservoir (TGR), the mainstream of TGR and five tributary bays in Hubei province were observed from October 2005 to July 2006. The spatial and seasonal dynamics of the sediment total nitrogen (TNsed) and total phosphorus (TPsed), the relationship between the mainstream and tributary, and the sediment nutrients' effect to the surface water were analyzed. The results showed that, concentrations of TNsed ranged from 0.27 to 2.04 mg/g, and TPsed fluctuated between 0.17 and 1.21 mg/g. Both of the maximum of TNsed and TPsed appeared in the Xiangxi Bay (the longest bays studied), 1.09 and 0.90 mg/g respectively. No significant spatial differences were found among different sites in other bays (p > 0.05). For seasonal dynamics of TPsed, only the difference in the Yuanshui Bay between spring and summer was significant (p < 0.05). For TNsed, significant differences existed among different seasons in most bays, especially between autumn and other seasons. Cluster analysis based on the surface water nutrients and sediment nutrients indicated that the influence range of the mainstream to the surface water ranged from 10.7 to 15.1 km, while the length of the influence range to the sediment was about 5.34 km. Results of the correlation analysis showed that the internal loading in Hubei province of TGR has not caused a significant effect on the surface water in a large spatial scale, although the influence was significant in some shallow regions. (C) 2012 Elsevier Ltd and INQUA. All rights reserved.
英文摘要: In order to analyze the distribution pattern of the sediment nitrogen and phosphorus of the Three Gorges Reservoir (TGR), the mainstream of TGR and five tributary bays in Hubei province were observed from October 2005 to July 2006. The spatial and seasonal dynamics of the sediment total nitrogen (TNsed) and total phosphorus (TPsed), the relationship between the mainstream and tributary, and the sediment nutrients' effect to the surface water were analyzed. The results showed that, concentrations of TNsed ranged from 0.27 to 2.04 mg/g, and TPsed fluctuated between 0.17 and 1.21 mg/g. Both of the maximum of TNsed and TPsed appeared in the Xiangxi Bay (the longest bays studied), 1.09 and 0.90 mg/g respectively. No significant spatial differences were found among different sites in other bays (p > 0.05). For seasonal dynamics of TPsed, only the difference in the Yuanshui Bay between spring and summer was significant (p < 0.05). For TNsed, significant differences existed among different seasons in most bays, especially between autumn and other seasons. Cluster analysis based on the surface water nutrients and sediment nutrients indicated that the influence range of the mainstream to the surface water ranged from 10.7 to 15.1 km, while the length of the influence range to the sediment was about 5.34 km. Results of the correlation analysis showed that the internal loading in Hubei province of TGR has not caused a significant effect on the surface water in a large spatial scale, although the influence was significant in some shallow regions. (C) 2012 Elsevier Ltd and INQUA. All rights reserved.
关键词[WOS]: PHOSPHORUS RELEASE ; XIANGXI BAY ; LAKE ; NITROGEN ; RIVER ; SEA ; DISTRIBUTIONS ; SHALLOW
语种: 英语
WOS记录号: WOS:000313610000020
ISSN号: 1040-6182
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19298
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Zhang, M; Xu, YY; Shao, ML; Cai, QH.Sedimentary nutrients in the mainstream and its five tributary bays of a large subtropical reservoir (Three Gorges Reservoir, China),QUATERNARY INTERNATIONAL,2012,282():171-177
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